During image destroy, delete textures only if we have a GL context.

ui/gl/gl_image_io_surface.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gl/gl_image_io_surface.h"
 
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_context.h"
 
 // Note that this must be included after gl_bindings.h to avoid conflicts.
 #include <OpenGL/CGLIOSurface.h>
 
 namespace gfx {
 
 GLImageIOSurface::GLImageIOSurface(const gfx::Size& size) : size_(size) {
 }
 
-GLImageIOSurface::~GLImageIOSurface() { Destroy(); }
+GLImageIOSurface::~GLImageIOSurface() {
+  DCHECK(!io_surface_);
+}
 
 bool GLImageIOSurface::Initialize(const gfx::GpuMemoryBufferHandle& handle) {
   io_surface_.reset(IOSurfaceLookup(handle.io_surface_id));
   if (!io_surface_) {
     LOG(ERROR) << "IOSurface lookup failed";
     return false;
   }
 
   return true;
 }
 
+void GLImageIOSurface::Destroy(bool have_context) {
+  io_surface_.reset();
+}
+
 gfx::Size GLImageIOSurface::GetSize() { return size_; }
 
 bool GLImageIOSurface::BindTexImage(unsigned target) {
   if (target != GL_TEXTURE_RECTANGLE_ARB) {
     // This might be supported in the future. For now, perform strict
     // validation so we know what's going on.
     LOG(ERROR) << "IOSurface requires TEXTURE_RECTANGLE_ARB target";
     return false;
   }
 
   CGLContextObj cgl_context =
       static_cast<CGLContextObj>(GLContext::GetCurrent()->GetHandle());
 
   DCHECK(io_surface_);

[reveman, 2014/07/24 16:22:03]

you need to update this too.

[sohanjg, 2014/07/25 10:54:21]

Done.

   CGLError cgl_error = CGLTexImageIOSurface2D(cgl_context,
                                               target,
                                               GL_RGBA,
                                               size_.width(),
                                               size_.height(),
                                               GL_BGRA,
                                               GL_UNSIGNED_INT_8_8_8_8_REV,
                                               io_surface_.get(),
                                               0);
   if (cgl_error != kCGLNoError) {
     LOG(ERROR) << "Error in CGLTexImageIOSurface2D";
     return false;
   }
 
   return true;
 }
 
 }  // namespace gfx